Front End Developer

Quantum Technologies. LLC; Minnesota; On-site; USD 120,000 - 150,000; Full time

Job summary

Quantum Technologies. LLC in Minnesota is seeking a Senior Front End Developer with hands-on expertise in React, Next.js, and TypeScript to build scalable, responsive enterprise web applications.

You will own front-end delivery and collaborate with product, design, backend, QA, and architecture teams to ship production-ready solutions. Responsibilities include building responsive apps with React/Next.js, implementing modern Next.js patterns, translating designs, integrating APIs, and maintaining

Qualifications

• Proficient in React.js, Next.js and TypeScript for enterprise frontend development.
• Experience translating Figma designs into pixel-perfect UIs and contributing to design systems.

Responsibilities

• Build responsive web apps using React, Next.js and TS.
• Architect and implement App Router patterns and SSR/CSR/ISR where appropriate.
• Translate designs into pixel-perfect interfaces and document components in Storybook.
• Integrate RESTful APIs and manage state with TanStack/React Context.
• Optimize performance and Core Web Vitals across devices.
• Write tests with Jest, RTL, Cypress, and Playwright and perform code reviews.
• Support CI/CD workflows with Vercel, AWS, or Azure.
• Mentor junior and mid-level developers to improve engineering maturity.

Skills

React.js

Next.js

TypeScript

HTML5

CSS3

Tailwind CSS

WCAG

Tools

Storybook

Jest

React Testing Library

Cypress

Playwright

Vercel

AWS

Azure

Git

Turborepo

Nx

pnpm

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Summary:

We are seeking a Senior Front End Developer with extensive hands on experience in React, Next.js, and TypeScript. You will build scalable, responsive, accessible, and high performance enterprise web applications. This role requires technical ownership and close collaboration with product, design, backend, QA, and architecture teams to deliver production ready front end solutions.

Responsibilities:

• Development: Build responsive web apps using React 19, Next.js 16+, TypeScript, Tailwind CSS, and shadcn/ui.
• Architecture: Utilize modern Next.js patterns including App Router, Server/Client Components, SSR/SSG/ISR, caching, and middleware.
• UI/UX: Translate Figma designs into pixel accurate user interfaces; contribute to enterprise design systems and document components via Storybook.
• Data & State: Integrate RESTful APIs with robust asynchronous handling; manage state using TanStack and React Context.
• Optimization: Maximize Core Web Vitals, code splitting, lazy loading, and bundle performance across devices.
• Quality & Testing: Write clean code; develop tests (Jest, React Testing Library, Cypress, Playwright); perform debugging and code reviews.
• DevOps: Utilize Git workflows and support CI/CD pipelines (Vercel, AWS, Azure).
• Leadership: Stay updated on industry trends; mentor junior and mid level developers to improve engineering maturity.

Core Skills:

• Expert knowledge of React.js (hooks, context, lifecycle), Next.js, TypeScript, ES6+, HTML5, CSS3, and DOM manipulation.
• Styling & Systems: Deep experience with Tailwind CSS, mobile first design, web accessibility (WCAG), and component driven workflows.

Preferred Qualifications

• Next.js Advanced: Expertise in App Router, React Server Components, route handlers, revalidation, and SEO optimization.
• Tools & Libraries: Experience with UI toolkits (Radix, Material UI, Chakra) and monorepos (Turborepo, Nx, pnpm workspaces).
• Security & Infrastructure: Familiarity with authentication (OAuth, JWT), cloud platforms, and Agile/Scrum delivery environments.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.